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Seat Belt Switch Malfunction (With RPO AJ3)

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the B153D driver seat belt buckle.
  2. Test for less than 1 Ω between the ground circuit terminal 1 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance. If the circuit tests normal, replace the K36 SDM.
  3. Ignition ON, verify the scan tool Driver Seat Belt Status parameter is Buckled.
    • If not the specified value, test the signal circuit terminal 2 for a short to ground. If the circuit tests normal, replace the K36 SDM.
  4. Install a 3 A fused jumper wire between the signal circuit terminal 2 and the ground circuit terminal 1. Verify the scan tool Driver Seat Belt Status parameter is Buckled.
    • If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K36 SDM
  5. If all circuits test normal, test or replace the B153D driver seat belt buckle.
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